Machine for forming and inserting staples.



0. ASHTON, DECD.

H ASHTON, EXECUTRIX. MACHINE FOR FORMINGAND INSERTING STAPLES.

APPLICATlON FILED FEB. 15. I916. N

Patented Dec. 1!. 1918.

0. ASHTON, DECD. H- ASHTON, EXECUTVRIX. MACHINE FOR FORMING AND INSERTING STAPLES.

APPLICATION FILED FEB-15. 1915 1,287,607. Patented Dec. 17, 191%}.24

UNITED STATESBAEENT OFFICE.

ORRELL ASHTON, DECEASED, LATE OF SWAMPSCOTT, MASSACHUSETTS, BY HANNAH ASHTON, EXECUTRIX, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR, BY MESNE ASSIGNMENTS, TO UNITED SHOE MACHINERY CORPORATION, OF PATERSON, NEW

JERSEY, A CORPORATION OF NEW JERSEY.

I MACHINE FOR FORMING AND INSERTING STAPLES.

Specification of Letters .Patent.

Patented Dec. 1'7, 1918.

- Application filed February 15, 191s. Seria1No.78,518.

scription, in connection with the accompanying drawings, is a specification, like refer ence characters on the drawings indicating like parts in the several figures.

.This invention relates to machines for inserting fastenings and particularly to machines which form staples from continuous material, such for example 2s wire, and then drive the staples in the work.

A general object of the present invention is to provide an improved staple forming and inserting machine which will be capable of operating in a given time upon a' greater amount of work than any machine heretofore constructed and which will operate with greater accuracy and efficiency.

In accordance with this object of the invention the staple forming and inserting machine herein shown and described as illustrating a preferred embodiment of the invention comprises a novel staple forming and inserting organization constructed and arranged to insert in two superimposed portions of a-piece of work two staples in axial alinement. In the illustrated embodiment of this feature of the invention, two staple forming and inserting mechanisms are disposed oppositely relatively to each other and are connected to their operating means in such manner that the staple formlng and inserting operations of both mechanisms are efiected substantially simultaneously.

In accordance with another feature of the invention the illustrated staple forming and driver in staple inserting direction causes relative movement of the inside former and the outside former to form a staple and pre sent it in position to beinserted in the work. This feature of the invention is of considerable practical importance since it provides an extremely simple and eflicient construction capable of operating with certainty and at a high rate of speed. v

According to a further feature of the invention' andas shown, the machine is provided with a two-faced anvil disposed between the fastening inserting mechanisms and having oppositeh arranged clenching cavities in aline'ment with the respective drivers, the illustrated anvil comprising two members constructed and arranged to yield independently of one another, for example, to compensate for variations in work thickness. i

The machine in which the present invention is herein shown as embodied is of especial utility in initially securing toe boxes or counters to uppers before the uppers are assembled on their lasts so that the toe boxes or counters may be held against displacement during thelastin and subse quent. operations on the shoe, t e twin fastening forming and inserting mechanisms being constructed and positioned with particular reference to facilitating this operation. It is to be understood, however, that the invention is not limited to such use.

'These and other features and objects of the invention will be apparent from the following detailed description when consid-' ered in connection with the accompanying drawings, and the novel features of the inven- .tion are set forth in the appended claims.

In the drawings,-

Figure 1 is av perspective view of the head of a staple forming and inserting machine embodying the present invention;

Fig. 2 is av perspective view of the wire feeding mechanism of that machine;

Fig. 3 is a rear elevation, partly in section, of the parts which operate the stapling mechanisms of the machine;

Fig. 4 is a side elevation showing the rela' tive inoperative positions of the members comprising one of the stapling mechanisms and showing a piece of work in position to be operated upon; and

Figs. 5, 6 and 7 are perspective views showing the different relative positions occupied in forming a staple by the members comprising one of the stapling mechanisms.

Referring to the drawings, the illustrated machine has a base or standard 2 which supports a head i having mounted therein a main shaft (3 provided on one end with a loose pulley 8 between which and the main shaft 6 there is a suitablesingle revolution reciprocation in are supported upon reels in detail.

wires being drawn from the reels by feeding mechanisms hereinafter described and fed into positions to be severed and formed into As shown, the staple forming and insert- 111g, mechanisms lO and 12 are identical, one being above wit its driver arranged to drive downwardly and one only of these 'quently'the construction of will be described mechanisms, the upper one,

comprises an inside former or die 16 over the stepped forward end 17. of which the wire W is fed, and an' outside former or die ich moves downwardly, as shown in Fig. ,5, to severthe wire andv bend the sev- Fig.'i6. ;-..Th e,staple is driven into-theworbbya driverflOcarried by a driver bar'22 "which'is mounted for vertical idew'ays 23 in the frame. The rear face 0' the. driver bar22 is provided with-inclined'camsurfaces 24 and 26.

351 lateralmovernent toward and away from the engages the rearface normally positioned 1 ward end 17 The insideformer l6 is mounted for free driver in guideways in the frame and is held 'with 'its stepped for-' in the path of movement of aspring 30, one end of which of the former 16. The upper portion of this former is also-provided with an inclined cam surface 32 which is adapted to be engaged by the surface 26 on the driver bar during its descent, thusmoving the inside former rearwardly against the tension of the spring 30'. The outside former comprises two levers 18 located on either side of the inside former 16 and pivoted at 36 at their rear ends to the frame of the machine. .The forward ends of the two levers are provided with grooves 38. extending across the bottom and along-the inner faces thereof, as indicated in Fig. 6, for the purpose of properly locating the Wire over the inside former as the approthe driver by mechanism and retainingthe formed staple in position to be inserted. The outsideformer is maintained normally in raised or inoperative position y the spring 30 the arm 39 of which is secured to one end of alink 40 secured to the levers at 43. The outside former 'is moved in a-'direction to sever a length of the other below with its driver arranged to drive upwardly, conseqThis staple forming mechanism =1 crank ceives anvil dispose-d and supported on the frame mon pivot 72 and having their forward ends "spaced apart and each provided with a wire and form it into a connection between it and the This connection comprises two at 44 on the inside former staple by a driver bar.

24L on the driver lower ends 46 in engagement with the respec forwardly of their b seen that as the driver bar descends the 42 to force the two outside former downwardly first to shear the wire projecting through an aperture 47 in the frame plate and across the inside former and then to-bend .the severed piece'of Wire over the inside former into the form of a initially relatively to the inside former. Inthepreferred embodiment of the inhaving on the outer ends of their forwardly projecting arms ivdriver ars The upper end of jaws 54 which oted blocks 56 on the ends of the 22' opposite the drivers.

50 is provided with eflects an oscillation of the outer arm of the bell crank 50 and'simultaneously therewith a correspondingequal oscillation of the bell 'The driven staples are clenched upon' an between the two stapling mechanisms. illustrated, this anvil comprises two forwardly extending levers 68 by a comstaple. clenching cavity in alinementwith the corresponding driver passage. The rear end of through which projects a stud 76 threaded into the end of the lower lever 70. This stud levers 18 comprising the As illustrated, this I of the bell crank 48 7 the upwardly extending armof the bell 1 y a longitudinally I extending slot or guidelway 58 which re 60- eccentrically,

the lever 68 is provided with a hole i I 40 I 99 nponwhichis mounted a cam roll 100 is surrounded by a coiled spring 78 which acts normally to keep the forward ends of the levers apart but permits them to yield sufliciently to compensate for varying thicknesses of work. Also, by reason of the fact that the levers 68, 70 which constitute the anvil are pivotally mounted at 72, the anvil acts to equalize and distribute between the two portions of the work the staple inserting force whereby the staples are uniformly clenched on opposite sides of the work regardless of any varying thicknesses of the two sides of the work.

The wire coils are wound upon reels mounted on the machine frame and the wires are fed to the machine by duplicate sets of feed wheels 80 and 82. The feed wheels 80, the wire engaging faces of which are corrugated, are mounted upon a single shaft 84 which has bearings in a bracket 85 on the machine frame. The cooperating feed rolls 82 are. also carried by a single shaft 89 mounted in a bracket 86 and these rolls are maintained in yielding engagement ing gears91 1 with the feed wheels 80 by a spring pressed 7 plunger 90 the outer end of which engages the shaft 89. The feed wheels and the presser rolls are provided with intermesh-' and 92 on the lower ends of their respective shafts and the shaft 84 is also provided with a ratchet wheel 93. The

priateflengths'of-wire'to the staple mechanisms is effected through a finger 94 the outer end of which is hooked to engage the teeth on a ratchet wheel93 fast on the shaft 84. This-finger is pivoted at 96 to theouter end of-a lever 98 whichis fulcrumed upon a' stud 97 on the machine'frame.

Intermediate between the ends ofthe-lever 98 is a stud which engages cam surface 1020f the cam 61 on the main shaft,-the cam 61' oscillating the lever 98and through the finger 9.4 rotating the feed wheels; The finger 94 and the aeam -rolll'lO0 on the lever 98 are heldno'r --mally. in engagement with; the cam 61 by a spring lunger 104 which presses on the rear en of the finger 94. and ma point on the opposite side of thefinger from the hooked end withrelation to the pivot 96.

i The wires areled'from the feed rollsto the -wire severing and forming jm'echanisms through tubes 106, which prevent the wire 'from'buckling and becoming tangled.

a. The machine herein illustrated and deor counter to the upper before the upper is assembled on the last so thatit may be held cribed. is particularly adapted to position accurately and to secure initiallya toe box per 110 and the upper is then folded over to bring the two sides which are to receive the i staple in registerwith each other in which position the upper ispresented to the machine, as shown in Fig. 4, one side of the upper andboX being located between the upper stapling mechanism and the opposedportion 68 of the anvil and the opposite side of the upper between the lower stapling 7.5 C utch if; then throw in a table treaxue I U I mechanism and its opposed anvil 70. The

connection (notshown) to rotate the main shaft 6.

Upon eccentric block 60 rocks the bell cranks 48 to feed appropriate lengths of wire across the inside formers. As the driver bars 22- the-rotation of the main shaft the and 50 to cause the opposed driver bars to v I;

move in staple; forming and inserting direce tion, the cam 61 through. the finger 94 and i lever 98 effecting a rotation of the feed rolls move in operating direction the cam sur-v faces 24 on the bars engage the pivoted levers 42 which force the sets of outside formers 18 toward each other first to sever the wire lengths and then to bend them-over the forward ends '17 of the inside formers into staple form. Upon further movementyof the-driver bars in staple inserting direc tion the cam surfaces 26 of the bars engage the cam surfaces 32 of the inside formersv ly and force them backwardly against the ten- 3 sion of the springs 30 asufiicient distance tov removethe stepped forward ends 17 of the formers from the paths of'the drivers, the

staples being retained in the paths of the drivers by the grooves 38 on the outside formers which form throats through. which the staples are driven. F urther movement of the drivers operates'to insert the staples in the work, the staples beingclenched upon the opposed clenching surfaces of the anvil,

" the anvil members being allowed to yield through the spring .78 to compensate for the thickness of work being operated upon..

Having described the invention, I claim as new and desire to secure-by Letters Pat- I ent of the United States '1. A stapleforming and inserting ma-j staple forming and inserting mechanisms each comprising an outside former, an in-J side former and a driver, the drivers of said mechanisms being in' vertical alinement, means for yieldingly supporting the work.

chine having, in combination, two opposed against the action of said mechanisms, and

power driven means including operative con w nections, with each of the staple forming and inserting mechanisms mechanisms.

2. A staple forming and inserting for operating said f chine comprising opposed twin staple form ing and inserting mechanisms each comprising an outside former, an insideform'er and a driver, said mechanisms being constructed said mechanisms and and arranged to receive a shoe upper between them and to insert in the shoe upper upon opposite sides thereof two staples in substantial alinement, a two-faced anvil permanently fixed relatively to both mechanisms to support the two sides of the shoe upper against the action of anisms, said anvil being constructed and arranged to present to each of said mechanisms a clenching cavity in the line of drive of the driver of that mechanism, together with power driven operating mech anism including connections with each of said staple forming and inserting mechanisms constructed and arranged to cause said staple forming and inserting mechanisms to operate substantially simultaneously. I

3. A staple forming and inserting machine comprising suitable staple forming and inserting mechanisms, means for ca-using said mechanisms to insert simultaneously two staples in axial alinement intwo superimposed portions of apiece of work, and a single pivoted anvil constructed and arranged to co-act with anisms whereby the staples are clenched in the work.

4:- A staple forming and inserting machine comprising two oppositely arranged staple forming and' inserting mechanisms including drivers, an anvil disposed'between adapted to co-act with both said mechanisms, means to equalize the force exerted by the drivers upon the anvil, and means for operating the staple forming and inserting mechanisms simultaneously and in opposite directions.

5. A- staple forming and inserting machine comprising two oppositely arranged staple forming and inserting mechanisms, an anvil disposed between said mechanisms adapted to co-act with both said mechanisms, and constructed and arranged to distribute between two portions of the work the staple inserting force, and a single means for operating the staple forming and inserting mechanism simultaneously in opposite directions.

6. A staple forming and inserting machine comprising two oppositely arranged staple forming and inserting mechanisms, and an anvil disposed between said mechanisms and having staple engaging faces permanent-1v alined with the respective mechanisms.

7. A staple forming and inserting machine comprising two staple forming and inserting mechanisms arranged to insert staples in opposite directions, and an anvil mounted yieldingly between said mechanisms and having staple engaging faces alined to support the work against the action of both said mechanisms.

8. A staple forming and inserting machine having, in combination, staple formsaid mechboth of said mech- 'ing and inserting mechanisms each compris mg outside and inside formers and a driver, together with an anvil disposed between said mechanisms and comprising relatively movable members provided with clenching surfaces in line with the respective drivers.

9. A staple forming and inserting machine having, in combination, twin staple forming and inserting mechanisms each comprising outside and inside formers and a driver, together with an anvil disposed be tween said mechanisms and comprising independently yielding members provided with clenching cavities in line with the respective drivers.

10. A staple forming and inserting machine having, in combination, twin staple forming and inserting mechanisms each comprising outside and inside formers and a driver. together with an anvil disposed between said mechanisms and comprising two levers having their freeends normally spaced and each provided with a staple clenching cavity in line with a driver, the other ends of the levers being drawn toward by a spring operating to keep the free ends of the levers normally sepa-' rated while permitting I ficiently to compensate for work differences.

11. A staple forming and inserting machine comprising two oppositely arranged staple forming and inserting mechanisms each .comprising an outside former, an inside former and a driver, and power driven operatin means for said mechanisms comprising an actuating crank, a slotted lever, and connections from said lever to both of said mechanisms.

12. A staple forming and inserting machine comprising oppositely arranged twin staple forming and insertin mechanisms each comprising an outside side former and a driver, levers connected with the respective drivers, one of said levers having a guideway at one end, a cam operated ivot block received in said guideway, and a block pivotally mounted on said other lever and received in said guideway whereby said, drivers are simultaneously moved ppositely by said first named block through said levers upon operative movement of said first named block.

In a machine of the class described, staple forming and inserting mechanism comprising an outside former, an inside former, a driver, means for operating the driver. and cams moved with the driver to effect relative operative movement of said outside former and said inside former during movement of ing direction.

14:. In a machine staple forming and the driver in staple insertof the class described, insertlng mechanism them to yield suf-' ormer, an in- 16; In 3. mac

former," comprising .a lever pivoted between a its ends, .a'nd, means carried. by said driver" 4 1: .io'r o erating said -1e'v er;c o1 mectinsfim ef-' ii'eet' an operation-,of saidoutside-former,

means for opera-ting the driver bar, and 'a l lever between one of said formers and said;

drivercam constructed and arrangedtoef- --fect an operation of that former during '5 inoveni'ent of the driver'in staple inserting direction v l5. In a, machine of the class descnhed, Ista ple forming and lnsertmg mechan sm comprising an" outside 'for1ner,' an, insidefo'rmei'fa, driver ba-rlhav ng cams thereon;

" means for operating saidfi'drive'r' bar, and op erating lever connections betweensa doutside former and said dnver cams for causst'ap1e'inserting direction;

nine 'ofhe elass described;

- staple L1forming-a11d "inserting mechanlsm comprising an oscillating-outside former,-

an inside former, idriver; means 'fQr .act'li .atin-g said. driver, "and operat ngixconnec 't-ions" bet'wee'n is'ziidz driver and-said outside 17 J. In .3 machine, ofthe. class described, staple formlng and-Qinserting' nieehanlsnr eomprlsmg 'e'dr ver bar, Ineansffor recrprocating' said driver-bar; an-inside former, -positive 'n eans'; carried by said driver bar.- 't'ocause the o eration of seidlinsiderformer,

and meens comprising;- a [gain on-the driver her-end a lever .pi voted'to- .35 the insideformer-for.. operating said-outside an outside 'fo'rrner .foriner,- Said -'m'ea'ns lbeing constructed and erranged Ito efi'ect -s'a'idoperations upon ;-'-jmovement of said driver jn staple inserting; mmo- 9] 40- 1-8. n {i mac ineofjtheelass described staple forming .end inserting meehanisms comprising a driver bar, means for operatsaid driver' bar, and an outside former-constructed and arranged to be "moved." into 'in'gsaid driver bar, a.n inside former nor.- mallv located in the path of movementflof staple formingposition by movement of said driver bar in staple inserting direction,

Y a single spring aeting to maintain the inside .-former in operative position and the outs de former in inoperative position, andmeans for movin the inside former out of; the

'1; 19; .In a, machine of -the fclass described,

.path of sald driver by operative movement- I 't-of'thedriven ingith'e operation 'offsaid outside former Y 15 dI'u-ingJth'e' movement of said driver bar in conneetionjbetween'said cam and said outside 'jformerconstrlreted and arranged to be operatedjby said earn to operetesaid outside I former .upon operatiVe- 'mover nent "ofi th e driver. v

20. In a; staple 'fo'rrning and ina- :ehin e, s'tavple forming andinserting mechanisrn comprising an inside former, an out- "side former, a driver bar, ,a driver carried I by the driver b aLr, means for operating the driver bar, end-{operativeconnections between .sald outs de former andithe driver,

'vsaid-eonnections comprising a lever pivoted on the inside vforr'nerkind having an end 1oeeted normally inthe path of the cam onthe driver bar: and its other end eonstructed 1 1 and arranged co operate: saidoutside former. In testimony whereof I- have'sign'ed my name tothis'specificetion. I HANNAHASHTON,"

ceased.

Ewmmm .of the will of own Ashton, de-

staple forming end inserting-j mechanisms f1 'eornprising an inside Qformer, an outside r fformer, adriverbar, a driver carried by the. I driver bar, meens'fo'r Operatihgthe driver bar, a cam onsaiddriver-ban jand a lever 6.0 

